40343025479 has 2 divisors, whose sum is σ = 40343025480. Its totient is φ = 40343025478.

The previous prime is 40343025377. The next prime is 40343025497. The reversal of 40343025479 is 97452034304.

40343025479 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with next prime (40343025497) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40343025479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40343021479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20171512739 + 20171512740.

It is an arithmetic number, because the mean of its divisors is an integer number (20171512740).

Almost surely, 2^40343025479 is an apocalyptic number.

40343025479 is a deficient number, since it is larger than the sum of its proper divisors (1).

40343025479 is an equidigital number, since it uses as much as digits as its factorization.

40343025479 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 362880, while the sum is 41.

The spelling of 40343025479 in words is "forty billion, three hundred forty-three million, twenty-five thousand, four hundred seventy-nine".